Attorneys for convicted murderer Dalton Fletcher asked the 2nd Circuit Court of Appeal on Monday to reconsider his second sentences to life in prison without parole for killing his parents.

Fletcher, who was 15 at the time of the crime, was found guilty in 2012.

He received two concurrent life sentences without the possibility of probation or parole as prescribed by Louisiana law.

Following a ruling by the U.S. Supreme court that an automatic sentence for juveniles was unconstitutional, attorneys appealed the ruling and were granted a hearing.

Fletcher was resentenced to life imprisonment at hard labor without the benefit of probation, parole or suspension of sentence.

Monday's hearing was an appeal of the second sentencing of Fletcher.

The appeal by Annette Roach of the Louisiana Appellate Project is based on four primary issues.

Among those was the standard applied by the trial court in determining that "this was the worst case and Mr. Fletcher was the worst type of offender, the significance placed on a jailhouse letter written by Fletcher to an inmate in Ouachita Correctional Center, the testimony and opinion of two expert witnesses, and the weight given to the opinions of the family members," the appeal reads.

The News-Star published much of the letter written by Fletcher in July 2013.

During a resentencing hearing, one expert witness testified that the letter if taken at face value "shows a psychopathic trait that could not be rehabilitated in spite of what you may do-may or may not do at Angola."

Another expert witness testified that although he found there was reason to believe Fletcher had an increased likelihood of violent behavior, it would be difficult to predict his behavior 35 years in the future, should he receive parole.

"The factors the doctor found present in this case included the nature of the crimes, that the crimes were planned and not committed on impulse, Dalton expressed no remorse, he has threatened to kill his sister, he had other criminal activity, early substance and alcohol abuse, liked to fight and tortured animals and (a family member)," the legal argument states.

"Dr. Vigen testified that age was an important factor in assessing future violent behavior; the younger the person, the greater the risk, whether they are incarcerated or not."